forked from kubermatic/kubermatic
/
deployment.go
122 lines (105 loc) · 3.51 KB
/
deployment.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
/*
Copyright 2020 The Kubermatic Kubernetes Platform contributors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package kubernetesdashboard
import (
"fmt"
"github.com/kubermatic/kubermatic/api/pkg/resources"
"github.com/kubermatic/kubermatic/api/pkg/resources/reconciling"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/utils/pointer"
)
var (
defaultResourceRequirements = map[string]*corev1.ResourceRequirements{
scraperName: {
Requests: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("32Mi"),
corev1.ResourceCPU: resource.MustParse("50m"),
},
Limits: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("64Mi"),
corev1.ResourceCPU: resource.MustParse("100m"),
},
},
}
)
const (
scraperName = resources.MetricsScraperDeploymentName
scraperImageName = "kubernetesui/metrics-scraper"
scraperTag = "v1.0.3"
)
// DeploymentCreator returns the function to create and update the dashboard-metrics-scraper deployment
func DeploymentCreator() reconciling.NamedDeploymentCreatorGetter {
return func() (string, reconciling.DeploymentCreator) {
return scraperName, func(dep *appsv1.Deployment) (*appsv1.Deployment, error) {
dep.Name = scraperName
dep.Labels = resources.BaseAppLabels(scraperName, nil)
dep.Spec.Replicas = resources.Int32(2)
dep.Spec.Selector = &metav1.LabelSelector{
MatchLabels: resources.BaseAppLabels(scraperName, nil),
}
dep.Spec.Template.ObjectMeta = metav1.ObjectMeta{
Labels: resources.BaseAppLabels(scraperName, nil),
}
volumes := getVolumes()
dep.Spec.Template.Spec.Volumes = volumes
dep.Spec.Template.Spec.Containers = getContainers()
err := resources.SetResourceRequirements(dep.Spec.Template.Spec.Containers, defaultResourceRequirements, nil, dep.Annotations)
if err != nil {
return nil, fmt.Errorf("failed to set resource requirements: %v", err)
}
dep.Spec.Template.Spec.ServiceAccountName = scraperName
return dep, nil
}
}
}
func getContainers() []corev1.Container {
return []corev1.Container{
{
Name: scraperName,
Image: fmt.Sprintf("%s/%s:%s", resources.RegistryDocker, scraperImageName, scraperTag),
ImagePullPolicy: corev1.PullIfNotPresent,
Command: []string{"/metrics-sidecar"},
VolumeMounts: []corev1.VolumeMount{
{
Name: "tmp-volume",
MountPath: "/tmp",
},
},
Ports: []corev1.ContainerPort{
{
ContainerPort: 8000,
Protocol: corev1.ProtocolTCP,
},
},
SecurityContext: &corev1.SecurityContext{
RunAsUser: pointer.Int64Ptr(1001),
RunAsGroup: pointer.Int64Ptr(2001),
ReadOnlyRootFilesystem: pointer.BoolPtr(true),
AllowPrivilegeEscalation: pointer.BoolPtr(false),
},
},
}
}
func getVolumes() []corev1.Volume {
return []corev1.Volume{
{
Name: "tmp-volume",
VolumeSource: corev1.VolumeSource{
EmptyDir: &corev1.EmptyDirVolumeSource{},
},
},
}
}